{データベースの可用性の管理その他}イメージコピーへの高速切り替えを実行

https://docs.oracle.com/cd/F19136_01/bradv/rman-complete-database-recovery.html#GUID-4EBD9D56-9700-45A1-B233-1F5506A04532

rman target /

backup as copy tablespace pdb11:users format '/fra/orcl/%U';

list backup;
list copy;

alter session set container=pdb11;

ALTER TABLESPACE users OFFLINE IMMEDIATE;

SWITCH TABLESPACE pdb11:users TO COPY;
RECOVER TABLESPACE pdb11:users;

ALTER TABLESPACE users ONLINE;

select * from dba_data_files;